Vodafone Idea — sim card crash

Dear sir,
My sim card is not showing any network for last 15 days.
I tried to solve the problem by restarting the phone, reinserting the sim, changing the phone.

On checking with customer care, they tell me that all the services are active in my number but i don't see any network signal.
I have lodged a complaint s[protected] but i cant see status because they send a verification code the same number. How can i receive a message when i don't have any network.

It is getting very discouraging for me, i don't see any options available to solve this issue. My idea number is [protected]. I can be contacted on [protected]@rediffmail.com

Regards
Anil madaan